SOLUTION: Ten Thousand dollars was invested in Investment A and Investemnt B for one year. Investment A earned 7% and Investment B lost 3% during the year. The total earned by Investment A a

Question 962127: Ten Thousand dollars was invested in Investment A and Investemnt B for one year. Investment A earned 7% and Investment B lost 3% during the year. The total earned by Investment A and Investment B was $575.
How much was Invested in each of Investment A and Investment B?

Please correct my work if I did anything not correct. my answer I try are:
let x represent invest at 7%
Let y represent invest at 3%
Total amount invested is: 575
A Linear system is:
1) x + y = 10000
2) 0.07x - 0.03y = 575

solve for equation 1 for x:
x+ y= 10000
x= 10000 - y
Sub x=1000 - y in equation 2
0.07x - 0.03y = 575
0.07 (10000 - y) - 0.03y = 575
700 - 0.1y = 575
-0.1y = -125
y= 1250

Sub y = 1250 in equation 1
x+ y= 10000
x + 1250 =10000
x = 8750

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Check answer:
2)

2)
2)
2)
and

Looks good

RELATED QUESTIONS
an investment advisor invested 12000 into two accounts. one investment earned 7 % annual... (answered by checkley77)

An investment of $8000 earned a net gain of $220 in one year. Part of the investment was... (answered by checkley77)

At the beginning of last year, Mrs. Maertens put money into three investments. She put a... (answered by mananth)

an invested 12000 i two accounts. one investment earned 7 % annual simple interest and... (answered by rfer)

An investment of Php 100 000 earned a net income of Php 3 450 in one year. Part of the... (answered by ikleyn,solve_for_x)

One safe investment pays 6% per year, and a more risky investment pays 12% per... (answered by math_tutor2020)

An investment advisor invested $14,000 in two accounts. One investment earned 8% annual... (answered by stanbon)

An investment adviser invested $14,000 in two accounts. One investment earned 8% annual... (answered by ikleyn)